how to find the radius? Something got to do with angle properties of triangles and quadrilaterals...i think so....
2006-09-02 16:42:31 · 5 answers · asked by CCE 1 in Science & Mathematics ➔ Mathematics
Yes. It *is* "something got to do with angle properties of triangles and quadrilaterals"
Take your 'piece' of the dinner plate and construct two tangent lines to the edge of it.
From the point of tangency, construct perpindiculars to the tangent lines.
Where these two perpindiculars intersect is the 'center' of the plate, and the distance from the center to either point of tangency is the radius.
Doug
2006-09-02 16:48:06 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋
Trace the circular edge of the plate onto a piece of paper. Now identify three points on the paper: one at or near each end of the circle, and one on the circle roughly halfway between them (need not be exact). Draw two lines, one between the first and second points, and a second one between the second and third points. Use a ruler and compass to construct a perpendicular bisector of each line. Where the bisectors meet is the center of the circle. Now you can easily measure the radius.
2006-09-02 16:51:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The length and degree of the arc will tell you. You basically need to reconstruct the whole circle. And then measure the radius. This assumes that you have an edge.
2006-09-02 16:49:13 · answer #3 · answered by Chris 2 · 0⤊ 0⤋
lol. You frm nanyang rite? Our maths journal...You're cheating!!! Omg la...
2006-09-05 04:20:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
AHAHA. cheating! ((:
u meanie ny student! lololol. ((:
2006-09-05 04:33:35 · answer #5 · answered by sweetsugars 1 · 0⤊ 0⤋